I had this same error after configuring my Pop3 account via outlook. Turns out it was a user account configuration problem. To solve this problem I had to do the following in Outlook 2007:
1. Tools -> Account Settings -> Email Tab
2. Open User Name your are trying to send from
3. On Internet Email settings page Select "More Settings"
4. Select Outgoing Tab
5. Ensure the checkbox "Use same settings as incoming server" is checked.
6. Select OK
7. Try the "Test Account Settings" button
8. The "Send test email message" should now check OK
9. Select "Next" and then "Finish"
You should be good to go from here. Log out and back into Outlook and try to send an email.
And wrote:
550 must be authenticated
06-Apr-07
WHen I forward or reply to an email I get this from the "System
Administrator" It comes back very fast and so I suspect its a setting on my
computer. I am running Office XP. Pop Email accounts. I recieve and send new
emails without a problem.
--
Andy
Previous Posts In This Thread:
550 must be authenticated
WHen I forward or reply to an email I get this from the "System
Administrator" It comes back very fast and so I suspect its a setting on my
computer. I am running Office XP. Pop Email accounts. I recieve and send new
emails without a problem.
--
Andy
It means that you are trying to send through a SMTP server that you have =not
It means that you are trying to send through a SMTP server that you have
not logged onto. YOu need to set authentication for that server
--=8
Milly Staples [MVP - Outlook
Post all replies to the group to keep the discussion intact. Al
unsolicited mail sent to my personal account will be deleted withou
reading. =2
After furious head scratching, Andy asked:
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